diff --git a/native/dormqr.go b/native/dormqr.go
index 6896b3bc..2df0b388 100644
--- a/native/dormqr.go
+++ b/native/dormqr.go
@@ -75,6 +75,7 @@ func (impl Implementation) Dormqr(side blas.Side, trans blas.Transpose, m, n, k
 		iws := nw * nb
 		if lwork < iws {
 			nb = lwork / nw
+			ldwork = nb
 			nbmin = max(2, impl.Ilaenv(2, "DORMQR", opts, m, n, k, -1))
 		}
 	}